Why ever not.

I think we need to look at the verse

My wife she do disturb me when I'm laid at my ease
She does as she likes and she says as she please
My wife, she's a devil, she's black as the coal
Give me the punch ladle, I'll fathom the bowl

I read that to be in relation to the devil who is supposedly evil and its association with the colour black.

Next you'll be stopping the black country being called the black country.

Or stop the Scots calling a particular brand of whiskey "Black Label"

Or stop calling "Black Pudding" black pudding

Or stop calling "blackcurrants" blackcurrants.

Maybe all colours should be banned from the English language, for fear it will offend anybody of any colour or creed.

When will this ever stop.

I strikes me that there are a bunch of people who deliberately look for anyway of finding something offensive in anything that mentions black.